Thank you for your comment, much appreciated. This is only ment as a teaser, not as an instructional video. I need to be able to teach seminars aswell, so i don't give everything away free on youtube ;-)

Sorry for the delayed reply, I got a little caught up with teaching and some of my own filming last week.

In terms of 'nastiness' I think you could potentially add in some more striking combinations. As examples the opening down sweep could be used as a hammerfist or forearm headshot following positional manipulation with the arm, followed by the tsuki as an armbar. Changing the position you could include closer range frontal preempts with the same technique such as forearm stikes to the head/neck/jawline followed by hammer fist strikes. With the upward receivers you could look at incorporating uppercut, elbow and forearm strikes.

Other ways to make it a bit 'nastier' could be to give the Uke a bit more bite... perhaps some haymakers, tackles, head butts etc...

In general terms I like to interpret Kata applications as closing down the other person with stirkes or controls, with multiple redundancies incase things don't go to plan. Obviously in flow drills this can become warped, but there are ways round the problem. I think the key is to give the uke as many opportunities to disrupt Tori as possible and to switch into Tori's role unpredictably - this means that the training truly becomes a two person dvelopment drill rather than a single person drill with a training partner.